CN205346823U - Flexible adds oil pipe and nozzle - Google Patents

Abstract

The utility model discloses a flexible adds oil pipe and nozzle adds oil pipe and personally experiences sth. Part of the body including the oil pipe that adds who supplies the fuel to pass through, it includes with the linkage segment of nozzle rifle body coupling, inserts with oil vessel's insertion section and be connected to add the oil pipe body bendable tune between linkage segment and the insertion section. The utility model discloses an add the oil pipe flexible, can conveniently refuel according to oil tank port position bending.

Description

Flexible oil filling pipe and nozzle

Technical field

This utility model relates to a kind of nozzle component, particularly relates to a kind of flexible oil filling pipe and has the nozzle of this oil filling pipe.

Background technology

At present, it is all adopt nozzle that vehicle is refueled, and is injected in the fuel tank on vehicle by oil filling pipe by oil.Existing oil filling pipe is all the metal tube of the solid shape for having bending, can only be inserted in fuel tank according to the shape of oil filling pipe during oiling, operation inconvenience.

Additionally, after oiling terminates, after nozzle departs from fuel tank, out, a part of oil gas also can evaporate the fluid meeting water clock of its gun barrel remnants, goes back contaminated environment, there is potential safety hazard while causing energy waste.

Although more existing nozzle gun barrels can realize self-sealing function, and the Self-sealing valve realizing self-sealing function is arranged in the gun body of nozzle, be positioned at after Self-sealing valve the trapped fuel of gun barrel still can water clock out, it is impossible to thoroughly realize antidrip.

Utility model content

The technical problems to be solved in the utility model is in that, it is provided that a kind of flexible oil filling pipe and have the nozzle of this oil filling pipe.

This utility model solves its technical problem and be the technical scheme is that a kind of flexible oil filling pipe of offer, including the oiling body passed through for fuel oil；Linkage section that described oiling body includes being connected with fuel oil gun body, insert the inserting paragraph adding oil vessel and the bendable tune being connected between described linkage section and inserting paragraph.

Preferably, described bendable tune is wavy metal pipeline section.

Preferably, and that be isolated oil discharge passage axially extending along described oiling body and self-styled passage it are provided with in described oil filling pipe body.

Preferably, the through described oiling body of described oil discharge passage；Described self-styled passage ends in described inserting paragraph, and, the sidewall of described inserting paragraph is provided with the pore self-sealing of radially through to described self-styled passage.

Preferably, the inserting paragraph exit of described oiling body is additionally provided with drip-proof check-valves.

Preferably, described check-valves includes pedestal, telescopic elastic component and is connected to the valve block on described pedestal by described elastic component；Described valve block is arranged in described oil discharge passage, controls the break-make of described oil discharge passage by described valve block to moving closer or far from described pedestal direction.

This utility model also provides for a kind of nozzle, including the flexible oil filling pipe described in gun body and any of the above item；The linkage section of the oiling body of described oil filling pipe is connected with described gun body.

Preferably, this nozzle also includes being set in the telescopic sleeve pipe that described oil filling pipe is external；

Remaining static at nozzle, the inserting paragraph of described oiling body is positioned at described telescopic sleeve pipe；

Being in fueling state at nozzle, described telescopic sleeve pipe compresses to described gun body direction, and the inserting paragraph of described oiling body is stretched out in described telescopic sleeve pipe.

Preferably, this nozzle also includes being set in the protection sleeve pipe that described telescopic sleeve pipe is peripheral, and the length of described telescopic sleeve pipe and oiling body is more than the length of described protection sleeve pipe；

In described resting state, described telescopic sleeve pipe stretches out described protection sleeve pipe away from one end of described gun body；At described fueling state, the compression of described telescopic sleeve pipe enters in described protection sleeve pipe, makes the inserting paragraph of described oiling body stretch out described telescopic sleeve pipe.

Preferably, this nozzle also includes being arranged on described telescopic sleeve pipe away from the closeouts on the end, one end of described gun body；Described closeouts includes closure seat and plugging sheet, and described closure seat is provided with mean for the passage of described oiling body traverse, and described plugging sheet is rotatably provided in described passage by elastic reset part, closes or open described passage；

In described resting state, described plugging sheet is by described channel enclosed, and described oiling body is blocked in described telescopic sleeve pipe by described closeouts；

At described fueling state, the compression of described telescopic sleeve pipe enters in described protection sleeve pipe, drives described closeouts to move to described protection sleeve pipe, and described oiling body backs down described plugging sheet, stretches out described closeouts through described passage.

The beneficial effects of the utility model: oil filling pipe is flexible, can according to reservoir port location bending, convenient oiling.

In the setting of oil filling pipe upper check valve, the anti-backflow when refueling, oil filling pipe oil dripping is prevented when non-refuelling.

Nozzle of the present utility model, it is achieved without fuel oil, oil and gas leakage in refueling process, more environmental protection, the combustion explosion hidden danger eliminated in hidden danger refueling process, it is ensured that safety, convenient and practical, complete function.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:

Fig. 1 is the perspective view of the nozzle of this utility model one embodiment；

Fig. 2 is the cross-sectional view of nozzle shown in Fig. 1；

Fig. 3 is the structural representation at fueling state of the nozzle shown in Fig. 2；Fig. 4 is the cross-sectional view of the flexible oil filling pipe of this utility model one embodiment；

Fig. 5 be this utility model one embodiment nozzle in the cross-sectional view of telescopic sleeve pipe；

Fig. 6 be this utility model one embodiment nozzle in protect the perspective view of sleeve pipe；

Fig. 7 is the perspective view of fuel tank cap in Fig. 3；

Fig. 8 is the cross-sectional view of another embodiment of fuel tank cap in Fig. 3.

Detailed description of the invention

In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing describes detailed description of the invention of the present utility model in detail.

As shown in Figure 1, 2, the nozzle of this utility model one embodiment, including gun body 10 and flexible oil filling pipe 20, oil filling pipe 20 is connected in gun body 10, and with the inner space of gun body 10, fuel oil flows to oil filling pipe 20 from gun body 10.

Wherein, as shown in Figure 2,4, oil filling pipe 20 includes the oiling body 21 that confession fuel oil passes through.Linkage section 211 that the body 21 that refuels includes being connected with fuel oil gun body 10, the inserting paragraph 213 that insertion adds oil vessel and the bendable tune 212 being connected between linkage section 211 and inserting paragraph 213.The bending of whole oiling body 21 is realized by the bending of bendable tune 212, the direction of the inserting paragraph 213 of scalable oiling body 21, facilitate insertion to add oil vessel and refuel.

The body 21 that refuels is structure as a whole.Preferably, the bendable tune 212 of oiling body 21 is wavy metal pipeline section.

Refuel that to be provided with oil discharge passage 214 and self-styled passage 215, oil discharge passage 214 and self-styled passage 215 in body 21 axially extending and be isolated along refueling body 21.Oil discharge passage 214 passes through to add oil vessel to enter for fuel oil.

Specifically, the through oiling body 21 of oil discharge passage 214, namely extend to inserting paragraph 213, the import of through linkage section 211 and the outlet of inserting paragraph 213 from linkage section 211.Self-styled passage 215 ends in inserting paragraph 213, extends to inserting paragraph 213, the import of through linkage section 211, and the outlet of not through inserting paragraph 213 from linkage section 211.Further, the sidewall of inserting paragraph 213 is provided with the pore self-sealing 216 of radially through to self-styled passage 215, and when refueling, pore self-sealing 216 can connect with oiling internal tank.When adding oil vessel and filling it up with oil, fluid blocks pore self-sealing 216, and nozzle is then jumped rifle and stopped refueling.

Further, inserting paragraph 213 exit of oiling body 21 is additionally provided with drip-proof check-valves 22.This check-valves 22 is positioned at the outside of self-styled passage 215 refueling on body 21.Check-valves 22 also prevents fluid from refluxing, it is to avoid nozzle frequently jumps rifle.

As a kind of embodiment, check-valves 22 can include pedestal 221, telescopic elastic component 222 and the valve block 223 being connected on pedestal 221 by elastic component 222.Valve block 223 is arranged in oil discharge passage 214, controls the break-make of oil discharge passage 214 by valve block 223 to moving closer or far from pedestal 221 direction.Check-valves 22 can pass through pedestal 221 and be arranged in inserting paragraph 213 outlet of oiling body 21.The periphery of pedestal 221 can be provided with screw thread and coordinate with the inner circumferential of inserting paragraph 213, or the port of export being provided with step and inserting paragraph 213 fastens.

The end face relative with valve block 223 of pedestal 221 is additionally provided with through hole 224, is connected with oil discharge passage 214 when oil discharge passage 214 is open.

Further, oil discharge passage 214 is provided with sealed step 217；Valve block 223 compresses sealed step 217 under the pushing effect of elastic component 222, closes oil discharge passage 214.

This sealed step 217 is the ring-shaped step being arranged on inserting paragraph 213 inwall, and the hole in the middle part of ring-shaped step is less than valve block 223, when valve block 223 is pressed in sealed step 217, is closed in the hole in the middle part of ring-shaped step, it is achieved the closing of oil discharge passage 214.

During oiling, fuel oil flow to oil filling pipe 20 from gun body 10, oil discharge passage 214 at oiling body 21 flow to valve block 223, push valve block 223, valve block 223 is made to move to close pedestal 221 direction and leave sealed step 217, open oil discharge passage 214, fuel oil is flowed out by through hole 224 on oil discharge passage 214 and pedestal 221.When have fuel flow returns pass through through hole 224 flow to valve block 223 time, valve block 223 is pressed in sealed step 217 by pushing, close oil discharge passage 214, it is prevented that fuel oil enter oil discharge passage 214.When non-refuelling, valve block 223 is pushed by elastic component 222 restoring force and is pressed in sealed step 217, closes oil discharge passage 214, it is prevented that oiling body 21 oil dripping, thus playing drip-proof effect.

Further, as shown in Fig. 1-3 and Fig. 5, this nozzle also includes being set in the telescopic sleeve pipe 30 refueled outside body 21.With reference to Fig. 2,4, remain static at nozzle, refuel body 21 inserting paragraph 213 be positioned at telescopic sleeve pipe 30；With reference to Fig. 3,4, be in fueling state at nozzle, telescopic sleeve pipe 30 to gun body 10 direction compress, refuel body 21 inserting paragraph 213 stretch out in telescopic sleeve pipe 30.

Telescopic sleeve pipe 30 is preferably elastic metallic corrugated tube, is set in outside oil filling pipe 20 so that oil filling pipe 20 does not expose, and protects oil filling pipe 20.

Further, again as Figure 1-3, this nozzle also includes the protection sleeve pipe 40 being set in telescopic sleeve pipe 30 periphery, and the length of telescopic sleeve pipe 30 and oiling body 21 is more than the length of protection sleeve pipe 40.Remaining static at nozzle, telescopic sleeve pipe 30 stretches out protection sleeve pipe 40 away from one end of gun body 10；Being in fueling state at nozzle, telescopic sleeve pipe 30 compression enters in protection sleeve pipe 40, makes the inserting paragraph 213 of oiling body 21 stretch out telescopic sleeve pipe 30.Telescopic sleeve pipe 30 and oil filling pipe 20 are played further protective effect by protection sleeve pipe 40.

Wherein, protection sleeve pipe 40 is metal tube, and it can include being set in the body 41 of telescopic sleeve pipe 30 periphery and being arranged on the connector of body 41 end, and connector is used for and fuel tank cap 60 rotary fastening.By protecting sleeve pipe 40 and fuel tank cap 60 rotatable engagement, nozzle can be tightly connected with the oil filler added on oil vessel, it is achieved the sealing in refueling process, it is prevented that oil-gas diffusion in air, safety and environmental protection.

Connector can include the cylinder 42 that is axially connected on body 41 end and the bindiny mechanism being arranged on cylinder 42 to fasten with fuel tank cap 60.Cylinder 42 is internal with body 41 to be connected.

Connector and body 41 are structure as a whole, one-body molded when making.In connector, the internal diameter of cylinder 42 is more than the internal diameter of body 41, thus cylinder 42 projects radially outwardly on body 41, forms cover body structure and coordinates with fuel tank cap 60.

In the present embodiment, shown in Fig. 1-3 and Fig. 6, bindiny mechanism includes the stopper 43 that several and in fuel tank cap 60 shackle member 61 is engaged by rotation, and stopper 43 is arranged on the cylinder 42 end face away from body 41, and extends to the central axial direction of cylinder 42.Several stoppers 43 are spaced apart, and the interval between stopper 43 forms the breach 44 supplying shackle member 61 traverse to enter cylinder 42.Several stoppers 43 are symmetrically distributed on the end face of cylinder 42 centered by the axis of cylinder 42.

As a kind of embodiment, stopper 43 includes the first catch 431 extended on cylinder 42 end face to the bending of cylinder 42 central axial direction.The rotatable inner side being fastened on the first catch 431 of the shackle member 61 of fuel tank cap 60.Stopper 43 also includes the second catch 432 extended from the free end of the first catch 431 to the bending of body 41 direction, the length of the second catch 432 is less than the length of cylinder 42, thus leaving interval between the second catch 432 and cylinder 42 other end, engage wherein for shackle member 61.

Cylinder 42 is connected with body 41 towards one end of body 41 by annular side plate 45.This annular side plate 45 can be vertically connected between cylinder 42 and body 41.Annular side plate 45 is relative with stopper 43, lays respectively at the two ends place of cylinder 42.

In other embodiments, bindiny mechanism may also comprise the screw thread coordinated with fuel tank cap 60 arranged at cylinder 42 inwall, thus connector is by screw connection manner and fuel tank cap 60 rotatable engagement.

Further, as shown in Fig. 1-3 and Fig. 5, this nozzle also includes being arranged on telescopic sleeve pipe 30 away from the closeouts 50 on the end, one end of gun body 10.Oil filling pipe 20, by the end-enclosed of telescopic sleeve pipe 30, also can be blocked in telescopic sleeve pipe 30 by closeouts 50.

Wherein, closeouts 50 can include closure seat 51 and plugging sheet 52, and closure seat 51 is provided with mean for the passage 53 of oiling body 21 traverse, and plugging sheet 52 is rotatably provided in passage 53 by elastic reset part, closes or open channel 53.Remaining static at nozzle, passage 53 is closed by plugging sheet 52, and oiling body 21 is blocked in telescopic sleeve pipe 30 by closeouts 50；Being in fueling state at nozzle, telescopic sleeve pipe 30 compression enters in protection sleeve pipe 40, drives closeouts 50 to move to protection sleeve pipe 40, and the body 21 that refuels backs down plugging sheet 52, stretches out closeouts 50 through passage 53.

Additionally, such as Fig. 2, shown in 5, linkage section 211 periphery of oiling body 21 is additionally provided with the first end cap 218, the periphery of the first end cap 218 is provided with ring-shaped step 2180, one end of telescopic sleeve pipe 30 on ring-shaped step 2180, is fixed on oiling body 21 by telescopic sleeve pipe 30 towards one end end abutment of gun body 10.Telescopic sleeve pipe 30 is also closed by the first end cap 218, it is to avoid dust etc. enter, it is possible to avoid oil gas to leak.

One end of first end cap 218 can be close-coupled in gun body 10, and telescopic sleeve pipe 30 is from the other end its periphery sheathed of the first end cap 218 and is connected on ring-shaped step 2180.Refuel and be formed with gap between periphery and first end cap 218 of body 21 so that the intracavity inter-connection in gap and gun body 10 is passed through in telescopic sleeve pipe 30 and the space refueled between body 21；During oiling, oil gas is drawn back oil tank by the vacuum pumping pump before nozzle from telescopic sleeve pipe 30 and the space refueled between body 21.

Producing negative pressure inside telescopic sleeve pipe 30 in order to avoid vacuum pump power is excessive excessive, the first end cap 218 is provided with at least one through hole 219, and through hole 219 radially extends through first end cap 218, and connection telescopic sleeve pipe 30 is internal；Through hole 219 is provided with the vacuum-breaking valve 210 closed or open through hole 219, opens when telescopic sleeve pipe 30 internal negative pressure and open through hole 219.Vacuum-breaking valve 210 includes the components such as valve seat, spring, steel ball, and when telescopic sleeve pipe 30 internal negative pressure, steel ball moves inside valve seat at valve seat opening part, the passage on open valve seat, thus open through hole 219.

After protection sleeve pipe 40 with fuel tank cap 60 rotary fastening, closeouts 50 is also closely connected in fuel tank cap 60, makes to seal between oil filling pipe 20 and fuel tank cap 60, it is prevented that oil gas leaks.

It addition, in the periphery of telescopic sleeve pipe 30 also can sheathed second end cap, protection sleeve pipe 40 can be connected on the second end cap away from the other end of fuel tank cap 60 so that protection sleeve pipe 40 is internal to be closed.Further, in order to prevent producing negative pressure in protection sleeve pipe 40, the second end cap can arrange channel connection internal to protection sleeve pipe 40, passage arranges vacuum-breaking valve.When protecting hypotony in sleeve pipe 40, the steel ball of this vacuum-breaking valve is the passage on mobile open and protection sleeve pipe 40 in valve seat, makes protection sleeve pipe 40 inside connect extraneous air.

This nozzle can include or not include fuel tank cap 60.Shackle member 61 in fuel tank cap 60 can be barb-like.

Such as Fig. 3, shown in 7, with the fuel tank cap 60 of protection sleeve pipe 40 rotatable engagement, it may include having the cylinder base 62 of passage 620 and be arranged on passage 620 and for opening and closing the shell fragment 63 of passage 620, shackle member 61 is arranged on cylinder base 62 periphery.Fuel tank cap 60 is assemblied on the oil filler adding oil vessel.Fuel tank cap 60 does not need to take off when refueling, with protection sleeve pipe 40 rotatable engagement after, telescopic sleeve pipe 40 compression enters protection sleeve pipe 40, and oil filling pipe 20 stretches out protection sleeve pipe 40 can back down shell fragment 63, is entered by the passage 620 of fuel tank cap 60 and adds in oil vessel.After oiling completes, protection sleeve pipe 40 rotationally disengages with fuel tank cap 60, and oil filling pipe 20 leaves and adds oil vessel, and telescopic sleeve pipe 30 telescopic sleeve pipe 30 stretches and restores to oil filling pipe 20 periphery, and the shell fragment 63 of fuel tank cap 60 resets and closed by its passage 620.

Specifically, shell fragment 63 is rotatably connected on the inwall of cylinder base 62 by elastic reset part (such as torsion spring etc.), rotates to fuel tank internal direction to open passage 620 under external force.Cylinder base 62 can include the first end 621 of being connected with fuel tank and the second end 622 with protection sleeve pipe 10 rotatable engagement.First end 621 of cylinder base 62 is correspondingly arranged with the size of reservoir port, and the periphery of this first end 621 or the junction of the first end 621 and the second end 622 also can be provided with sealed step or sealing ring, closely cooperate with reservoir port.Shackle member 61 is arranged on the second end 622 periphery.First end 621 periphery can be provided with screw thread and be spirally connected with reservoir port.

In one embodiment of fuel tank cap 60, as it is shown on figure 3, passage 620 inwall of corresponding second end 622 is provided with step surface 6201, closure seat 51 end of closeouts 50 can closely be connected on this step surface 6201；Sealing ring be may further be provided between closure seat 51 end and step surface 6201 to seal, for instance, seal groove 510 is set in closure periphery, seat 51 end, is used for placing sealing ring, as shown in Figure 5.

In another embodiment of fuel tank cap 60, with reference to Fig. 7, shown in 8, the passage 620 of fuel tank cap 60 can include the first bigger through hole 623 of internal diameter and less the second through hole 624 of internal diameter.First through hole 623 is positioned at the first end 621；Second through hole 624 is positioned at the second end 622, also optionally extends in the second end 622.

The junction of the second through hole 624 and the first through hole 623 forms a step surface 625, and the edge of shell fragment 63 compresses and fits on step surface 625.Second through hole 624 inner surface is also provided with the seal groove 626 for placing sealing ring and closeouts 50 is tightly connected, it is prevented that oil gas leaks.

Further, shell fragment 63 is arranged in the first through hole 623 by rotating shaft 631, and elastic reset part 64 is set in rotating shaft 631, and its two elastic arm abuts shell fragment 63 and the first through hole 623 inwall respectively.Shell fragment 63 is opened to fuel tank internal direction (such as backing down of oil filling pipe 20) under external force, is automatically reset by the restoring force effect of elastic reset part 64 when external force disappears.For ensureing sealing, surface and/or the surface of step surface 625 that shell fragment 63 connects with step surface 625 are provided with sealant, by tight seal between shell fragment 63 and step surface 625.Sealant can adopt the various encapsulant such as rubber, silica gel to make.

When nozzle of the present utility model refuels; closeouts 50 alignment is connected in fuel tank cap 60; protection sleeve pipe 40 is directed at and is pressed in fuel tank cap 60 and fuel tank cap 60 rotatable engagement; now telescopic sleeve pipe 30 compression enters in protection sleeve pipe 40; oil filling pipe 20 then stretches out telescopic sleeve pipe 30 and backs down fuel tank cap 60; the inserting paragraph 213 of oil filling pipe 20 enters in fuel tank through closeouts 50, and fuel oil is entered in fuel tank by nozzle.In refueling process, the cooperation of protection sleeve pipe 40 and fuel tank cap 60 is by sealing gap between oil filling pipe 20 and reservoir port, it is achieved refueling process is airtight, it is to avoid oil gas leaks.

After oiling completes, fuel oil stops conveying, and oil filling pipe 20 oil discharge passage 214 is closed by the check-valves 22 on oil filling pipe 20, it is prevented that fuel drop out；Protection sleeve pipe 40 rotationally disengage fuel tank cap 60, nozzle can leave on fuel tank, telescopic sleeve pipe 30 stretch reset, by the inserting paragraph 213 of oil filling pipe 20 again sheathed wherein, oil filling pipe 20 is blocked in telescopic sleeve pipe 30 by closeouts 50.

To sum up, nozzle of the present utility model, it may be achieved without fuel oil, oil and gas leakage in refueling process, more environmental protection, the combustion explosion hidden danger eliminated in refueling process, it is ensured that safety, convenient and practical, complete function.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in scope of patent protection of the present utility model.

Claims (10)

1. a flexible oil filling pipe, it is characterised in that this oil filling pipe (20) includes the oiling body (21) passed through for fuel oil；Linkage section (211) that described oiling body (21) includes being connected with fuel oil gun body (10), insert the inserting paragraph (213) adding oil vessel and the bendable tune (212) being connected between described linkage section (211) and inserting paragraph (213).

2. flexible oil filling pipe according to claim 1, it is characterised in that described bendable tune (212) is wavy metal pipeline section.

3. flexible oil filling pipe according to claim 1, it is characterised in that be provided with oil discharge passage (214) that is axially extending along described oiling body (21) and that be isolated and self-styled passage (215) in described oiling body (21).

4. flexible oil filling pipe according to claim 3, it is characterised in that the through described oiling body (21) of described oil discharge passage (214)；Described self-styled passage (215) ends in described inserting paragraph (213), and, the sidewall of described inserting paragraph (213) is provided with the pore self-sealing (216) of radially through to described self-styled passage (215).

5. flexible oil filling pipe according to claim 3, it is characterised in that inserting paragraph (213) exit of described oiling body (21) is additionally provided with drip-proof check-valves (22).

6. flexible oil filling pipe according to claim 5, it is characterized in that, described check-valves (22) includes pedestal (221), telescopic elastic component (222) and the valve block (223) being connected on described pedestal (221) by described elastic component (222)；Described valve block (223) is arranged in described oil discharge passage (214), controls the break-make of described oil discharge passage (214) by described valve block (223) to moving closer or far from described pedestal (221) direction.

7. a nozzle, it is characterised in that include the flexible oil filling pipe (20) described in gun body (10) and any one of claim 1-6；The linkage section (211) of the oiling body (21) of described oil filling pipe (20) is connected with described gun body (10).

8. nozzle according to claim 7, it is characterised in that this nozzle also includes being set in described oiling body (21) telescopic sleeve pipe (30) outward；

Remaining static at nozzle, the inserting paragraph (213) of described oiling body (21) is positioned at described telescopic sleeve pipe (30)；

Being in fueling state at nozzle, described telescopic sleeve pipe (30) compresses to described gun body (10) direction, and the inserting paragraph (213) of described oiling body (21) is stretched out in described telescopic sleeve pipe (30).

9. nozzle according to claim 8; it is characterized in that; this nozzle also includes being set in the protection sleeve pipe (40) that described telescopic sleeve pipe (30) is peripheral, and the length of described telescopic sleeve pipe (30) and oiling body (21) is more than the length of described protection sleeve pipe；

In described resting state, described telescopic sleeve pipe (30) stretches out described protection sleeve pipe (40) away from one end of described gun body (10)；At described fueling state, described telescopic sleeve pipe (30) compression enters in described protection sleeve pipe (40), makes the inserting paragraph (213) of described oiling body (21) stretch out described telescopic sleeve pipe (30).

10. nozzle according to claim 9, it is characterised in that this nozzle also includes being arranged on described telescopic sleeve pipe (30) away from the closeouts (50) on the end, one end of described gun body (10)；Described closeouts (50) includes closure seat (51) and plugging sheet (52), described closure seat (51) is provided with mean for the passage (53) of described oiling body (21) traverse, described plugging sheet (52) is rotatably provided in described passage (53) by elastic reset part, closes or open described passage (53)；

In described resting state, described passage (53) is closed by described plugging sheet (52), and described oiling body (21) is blocked in described telescopic sleeve pipe (30) by described closeouts (50)；

At described fueling state; described telescopic sleeve pipe (30) compression enters in described protection sleeve pipe (40); drive described closeouts (50) mobile to described protection sleeve pipe (40); described oiling body (21) backs down described plugging sheet (52), stretches out described closeouts (50) through described passage (53).